Douglas Broussard
28-Apr-1999, 16:12
While this question deals with darkroom procedures, it is unique to large format , hence my posting here. While the archives have many helpful posts and answers on Tech Pan development i n roll form, I'm looking for anyone who may have experience developing Tech Pan sheet film (4X5 in a Jobo CPE2/with lift.) in technidol. Kodak does not specific ally discourage this, but provides no information regarding development times or techniques for this dev/film combo other than 8 min in a tray.
Using Kodak's standard Technidol dilution for 4X5 (which is 1/2 of the dilution for roll film), I tested six sheets--two at 8 min, two at 7 min, and two at 6 mi n--and at the tray development time, contrast was markedly higher at 8 min. At s ix minutes, contrast was a fairly low, and at seven, looks to be spot on.
While you may be thinking "he's answered his own question" I am wondering if any one else out there is using a Jobo to process Teh Pan in technidol and if their results approach mine. I don't have a densitometer, but just from eyeballing con tact sheets made on grade two paper, I think I may have nailed down about the ri ght time. I'm hesitant to test much further because of cost reasons, hence my qu ery.
Thanks,
Doug
Using Kodak's standard Technidol dilution for 4X5 (which is 1/2 of the dilution for roll film), I tested six sheets--two at 8 min, two at 7 min, and two at 6 mi n--and at the tray development time, contrast was markedly higher at 8 min. At s ix minutes, contrast was a fairly low, and at seven, looks to be spot on.
While you may be thinking "he's answered his own question" I am wondering if any one else out there is using a Jobo to process Teh Pan in technidol and if their results approach mine. I don't have a densitometer, but just from eyeballing con tact sheets made on grade two paper, I think I may have nailed down about the ri ght time. I'm hesitant to test much further because of cost reasons, hence my qu ery.
Thanks,
Doug